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Old 4th Jul 2006, 10:27 am   #14
oldeurope
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Join Date: Dec 2003
Location: Solingen, Germany
Posts: 727
Thumbs up Re: New Aurora converter - help wanted with review

Good morning ,
thanks to Jeffrey for this very interesting review.

It made me thinking and I have some technical questions.

On Page 15 BVWS Journal DC offset you wrote:
„In this design the sync tips are at about 0.2V which will not cause any practical problems.“
Page 33 „...the simple emitter follower output stage.“
So the sync tips are not on the zero rail?! How is this stage made? How much ohms is the pull down resistor of this emitterfollower ?

Another question in the modulator sync tip level page 15.
„The Aurora’s modulator puts them at 10%.“ Means modulation depth is 90% in your case.
In the aurora manual page 20 is written „99% maximum“
But have a look at the data sheet attached:
minimum 87% typical 93% maximum 99% What value should we take?
And with the sound ist is the same, because it goes via the vision input of the other IC.

Kind regards
Darius
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